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android_kernel_xiaomi_sdm845/include
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David Gibson f10a04c034 [PATCH] powerpc: Fix pagetable bloat for hugepages 
At present, ARCH=powerpc kernels can waste considerable space in
pagetables when making large hugepage mappings.  Hugepage PTEs go in
PMD pages, but each PMD page maps 256M and so contains only 16
hugepage PTEs (128 bytes of data), but takes up a 1024 byte
allocation.  With CONFIG_PPC_64K_PAGES enabled (64k base page size),
the situation is worse.  Now hugepage PTEs are at the PTE page level
(also mapping 256M), so we store 16 hugepage PTEs in a 64k allocation.

The PowerPC MMU already means that any 256M region is either all
hugepage, or all normal pages.  Thus, with some care, we can use a
different allocation for the hugepage PTE tables and only allocate the
128 bytes necessary.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-28 15:02:51 +10:00
..
acpi [PATCH] s/;;/;/g 2006-03-24 07:33:24 -08:00
asm-alpha [PATCH] Configurable NODES_SHIFT 2006-04-11 06:18:39 -07:00
asm-arm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-04-15 16:01:39 -07:00
asm-arm26 [PATCH] unify pfn_to_page: arm26 pfn_to_page 2006-03-27 08:44:44 -08:00
asm-cris [PATCH] sys_kexec_load() naming fixups 2006-04-11 06:18:42 -07:00
asm-frv [PATCH] sys_kexec_load() naming fixups 2006-04-11 06:18:42 -07:00
asm-generic [PATCH] mutex: some cleanups 2006-03-31 12:19:01 -08:00
asm-h8300 [PATCH] sys_kexec_load() naming fixups 2006-04-11 06:18:42 -07:00
asm-i386 [PATCH] x86/PAE: Fix pte_clear for the >4GB RAM case 2006-04-27 12:00:59 -07:00
asm-ia64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-04-27 17:01:37 -07:00
asm-m32r [PATCH] m32r: update switch_to macro for tuning 2006-04-19 09:13:51 -07:00
asm-m68k [PATCH] m68k: fix undefined reference to generic_find_next_zero_le_bit 2006-03-26 08:57:13 -08:00
asm-m68knommu [PATCH] bitops: m68knommu: use generic bitops 2006-03-26 08:57:13 -08:00
asm-mips [MIPS] 24K LV: Add core card id. 2006-04-27 15:13:50 +01:00
asm-parisc [PARISC] Make ioremap default to _nocache 2006-04-21 22:20:35 +00:00
asm-powerpc [PATCH] powerpc: Fix pagetable bloat for hugepages 2006-04-28 15:02:51 +10:00
asm-ppc [PATCH] lock PTE before updating it in 440/BookE page fault handler 2006-03-29 13:44:15 +11:00
asm-s390 [PATCH] S390: fix implicit declaration of (un)likely. 2006-04-11 06:18:39 -07:00
asm-sh [PATCH] sys_kexec_load() naming fixups 2006-04-11 06:18:42 -07:00
asm-sh64 [PATCH] sys_kexec_load() naming fixups 2006-04-11 06:18:42 -07:00
asm-sparc [SPARC]: __NR_sys removal 2006-04-24 13:48:51 -07:00
asm-sparc64 [SPARC]: __NR_sys removal 2006-04-24 13:48:51 -07:00
asm-um [PATCH] uml: fix "extern-vs-static" proto conflict in TLS code 2006-04-11 06:18:36 -07:00
asm-v850 [PATCH] Remove unused prepare_to_switch macro 2006-04-11 06:18:34 -07:00
asm-x86_64 [PATCH] Add support for the sys_vmsplice syscall 2006-04-26 10:59:21 +02:00
asm-xtensa [PATCH] xtensa: Fix TIOCGICOUNT macro 2006-04-20 07:54:03 -07:00
keys [PATCH] Keys: Remove key duplication 2006-01-06 08:33:29 -08:00
linux Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2006-04-27 14:25:30 -07:00
math-emu
media V4L/DVB (3702): Make msp3400 routing defines more consistent 2006-04-02 04:56:11 -03:00
mtd [MTD] user-abi: Clean up trailing white spaces 2005-11-07 14:43:11 +01:00
net [PATCH] softmac: fix SIOCSIWAP 2006-04-24 15:20:23 -04:00
pcmcia [PATCH] pcmcia: declare pccard_iodyn_ops (fix m8xx_pcmcia.c compilation error) 2006-03-31 21:49:51 +02:00
rdma IB: simplify static rate encoding 2006-04-10 09:43:47 -07:00
rxrpc
scsi [SCSI] FC transport: fixes for workq deadlocks 2006-04-13 13:25:16 -05:00
sound [ALSA] sound/core/pcm.c: make snd_pcm_format_name() static 2006-04-12 11:34:21 +02:00
video [PATCH] Remove MODULE_PARM 2006-03-25 08:22:52 -08:00